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Highly sensitive detection of Ceftriaxone in water, food, pharmaceutical and biological samples based on gold nanoparticles in aqueous and micellar media.
A colorimetric assay with excellent sensitivity is reported to detect Ceftriaxone in aqueous and micellar solutions. Ceftriaxone could induce the aggregation of gold nanoparticles throughExpand
Pd(0)-guanidine@MCM-41 as efficient and reusable heterogeneous catalyst for C–C coupling reactions
A new catalyst of palladium containing guanidine as stabilizer ligand grafted on functionalized MCM-41 (Pd(0)-guanidine@MCM-41) was prepared during post-grafting procedure and characterized by SEM,Expand
Synthesis of substituted coumarins catalyzed by sawdust-SO3H. An efficient and environmentally benign solid acid catalyst under solvent-free conditions
The sulfonated sawdust (SD-SO3H) was easily prepared by treatment of sawdust, a biomass waste material, with chlorosulfonic acid and characterized by elemental analysis, SEM and TGA. TheExpand
Ni-guanidine@MCM-41 NPs: a new catalyst for the synthesis of 4,4ʹ-(arylmethylene)-bis-(3-methyl-1-phenyl-1H-pyrazol-5-ols) and symmetric di-aryl sulfides
In this work, the surface of mesoporous MCM-41 was modified with guanidine, and then, Nickel particles have become immobilized on its surface (Ni-guanidine@MCM-41NPs). This heterogeneous catalyst hasExpand
Synthesis and characterization of MCM-41@XA@Ni(II) as versatile and heterogeneous catalyst for efficient oxidation of sulfides and acetylation of alcohols under solvent-free conditions
Herein, Ni(II) immobilized on modified mesoporous silica MCM-41 was designed and synthesized via a facile sequential strategy. The structure of the catalyst was characterized by X-ray diffraction.Expand
Design, Synthesis, Molecular Docking and Biological Activity of New Piperidine and Piperazine Derivatives of Dichloroacetate as Potential Anticancer Agents
Dichloroacetate (DCA) is a small anticancer agent acting through inhibition of pyruvate dehydrogenase kinases (PDKs) and preventing proliferation of tumor growth. In this study, a series of newExpand
Alignment-independent 3D-QSAR and molecular docking studies of tacrine-4-oxo-4H-Chromene hybrids as anti-Alzheimer's agents
A series of novel tacrine derivatives as multifunctional agents with potential inhibitory effects on both acetylcholinesterase(AChE) and butyrylcholine-based enzymes for the treatment of Alzheimer's disease(AD), were applied to alignment independent 3D-QSAR methods using Pentacle software. Expand
A highly efficient protocol for the synthesis of new 3-(α-aroylamido)-4-hydroxycoumarin derivatives using SnCl2–SiO2 nanoparticles under solvent-free conditions
An efficient and simple protocol for the synthesis of the title compounds is described via a one-pot, three-component reaction of 4-hydroxycoumarin, aryl glyoxals and amides, using SnCl2-SiO2Expand
BF3-SiO2 Nanoparticles: An Efficient Catalyst for the Multi-Component Synthesis of 3-(α-aroylamido) 4-hydroxycoumarin Derivatives in Water
A green and efficient one-pot three component reaction of 4-hydroxycoumarin or 1,3-dimethylbarbutyric acid, aryl glyoxals and amides (thioacetamide) has been developed in the presence of BF3- SiO2Expand
Organocatalytic Combinatorial Synthesis of Quinazoline, Quinoxaline and Bis(indolyl)methanes.
AIM AND OBJECTIVE An efficient and practical procedure for the synthesis of heterocyclic compounds such as quinazolines, quinoxalines and bis(indolyl)methanes was developed usingExpand